CN109116333A - A kind of multiple-pulse is staggered the time the laser radar echo simulator of superposition - Google Patents
A kind of multiple-pulse is staggered the time the laser radar echo simulator of superposition Download PDFInfo
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- CN109116333A CN109116333A CN201811076029.2A CN201811076029A CN109116333A CN 109116333 A CN109116333 A CN 109116333A CN 201811076029 A CN201811076029 A CN 201811076029A CN 109116333 A CN109116333 A CN 109116333A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/497—Means for monitoring or calibrating
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Abstract
It staggers the time the laser radar echo simulator of superposition the invention discloses a kind of multiple-pulse, including program-controlled terminal, return laser beam database, multiple-pulse activation time delayed device, program-controlled laser drive circuit group, band tail optical fiber semiconductor laser group, optical-fiber bundling device, program-controlled optical attenuator, collimating optical system.The present invention is staggered the time by optical-fiber bundling innovation realization multiple-pulse and is superimposed laser pulse shape generation technique, the absolute distance of simulated target is triggered by pulse delay, influence of program-controlled optical attenuation the reflection target reflectivity and atmospheric attenuation etc. of database control to laser radar echo, the echo-signal of laser radar can accurately be simulated, it is simple with definite principle, structure, the outstanding advantages such as waveform stabilization, performance detection and laser radar virtual experimental suitable for Laser radar receiver.
Description
Technical field
The present invention relates to laser radar echo analogue technique, in particular to a kind of multiple-pulse stagger the time superposition laser radar return
Wave simulation device.
Background technique
Laser radar has the outstanding features such as strong antijamming capability, resolution ratio height, in ranging, tests the speed, angle measurement and tracking etc.
Field has a wide range of applications, and develops towards miniaturization, low-power consumption and devalued direction.In order to get rid of traditional outfield ranging examination
The restriction to laser radar production efficiency is tested, there is an urgent need to develop HWIL simulation and range performance test skill in laser radar room
Art, and laser radar echo simulator is its indispensable key device, requirement can be fully met by not yet retrieving in existing report
Technology and equipment.Patent No. CN201310506921.0 discloses a kind of laser echo simulation device and method, and realizing makes
Laser echo simulation device, which generates, tests required laser code, generates 4 road analogue echos and controls signal, " target is in upper, mesh for simulation
Be marked on down, target in left, target on the right side " laser eyepiece in four orientation, but the invention thinking is directed to semi-active laser guided
Bomb plays performance detection proposition entirely, it is difficult to be applied to the detection of laser radar indoor performance and HWIL simulation application.In addition, laser
Radar echo simulation also needs the analog functuion for having target range, reflection characteristic, return laser beam waveform and atmospheric attenuation etc.,
To reflect echoing characteristics of the laser radar under various application conditions comprehensively, therefore there is an urgent need to creatively develop tool
Standby laser pulse shape, amplitude and current moment accurate regulatable return laser beam simulator out.
Summary of the invention
It staggers the time the laser radar echo simulator of superposition the purpose of the present invention is to provide a kind of multiple-pulse, passes through program-controlled ginseng
Number setting simulates the program-controlled adjustable laser radar echo optical signal such as impulse waveform, amplitude, target range and atmospheric attenuation.
Realize the technical solution of the object of the invention are as follows: a kind of multiple-pulse is staggered the time the laser radar echo simulator of superposition, packet
Include: program-controlled terminal, multiple-pulse activation time delayed device, program-controlled laser drive circuit group, band tail optical fiber semiconductor laser group, optical fiber close
Beam device, program-controlled optical attenuator and collimating optical system, wherein the multiple-pulse activation time delayed device is fixed for generating the road n
The TTL signal of frequency, n >=2, and be independently delayed to each pulse by the delay that program-controlled terminal is arranged, it is described program-controlled sharp
The pulsewidth that light drive circuit group is used to be arranged according to program-controlled terminal exports after making pulse-width adjustment and signal amplification to the road n TTL signal
Driving signal, the band tail optical fiber semiconductor laser group are used for for emitting the road n laser pulse, the optical-fiber bundling device to n beam
Laser pulse carries out closing the superposition of Shu Shixian time warping, and the program-controlled optical attenuator is used for the attenuation being arranged according to program-controlled terminal
Pulse after pairing beam carries out amplitude control, the collimating optical system for formed after being collimated to wave beam impulse waveform,
The laser radar echo signal that amplitude, delay and collimation are met the requirements.
Preferably, the band tail optical fiber semiconductor laser group includes n band tail optical fiber semiconductor laser.
Preferably, the program-controlled terminal is connect with return laser beam database, for according to laser beam database purchase
Delay, pulsewidth, attenuation is arranged in data.
Preferably, the return laser beam database includes Beer law form atmospheric attenuation model and echo power form
Laser ranging equation.
Preferably, the multiple-pulse activation time delayed device is prolonged using the pulse of digital delay and simulation delay Mixed Design
When circuit, have system stable and the outstanding advantages such as delay precision height, can independently realize the delays time to control of each road laser, Ke Yida
To Ps grades of delay precision, delay precision is better than 200ps, and repetition rate is up to 20kHz.
Preferably, the collimating optical system (8) is auto-collimation optical fibre rod lens, simple, the compact, volume with structure
The small, outstanding advantages such as collimating effect is good.
Preferably, the value of n is 3.
Preferably, the program-controlled laser drive circuit group includes 3,3 groups of the row's needle header program-controlled Laser Driven electricity of 3pin
The output port on road, row needle header 3 is connect with one group of program-controlled laser drive circuit respectively, every group of program-controlled laser drive circuit
It is identical, including impulse generator chip DS1040, high speed amplifier chip AD8009, N channel metal-oxide-semiconductor, DC power supply+5V ,+
12V, fixed resistance R1, R2, R4, adjustable resistance R3, storage capacitor C1, C2 ,+5V and+12V respectively with impulse generator chip
DS1040 is connected with the end VCC of high speed amplifier AD8009, powers to chip；The impulse generator chip DS1040 according to
The pulsewidth size of the port P2, P1, P0 incoming level height selection output pulse；The port of header 3 and the port IN of DS1040
It is connected, gives DS1040 input clock signal；One end output end OUT and resistance R1 of DS1040 is connected, the resistance R1 other end and height
The in-phase end of speed amplifier chip AD8009 is connected；The one end resistance R2 ground connection, another termination high speed amplifier chip AD8009's
Reverse side；The one end variable resistance R3 is connected with high speed amplifier chip AD8009 reverse side, another termination high speed amplifier chip
The output end of AD8009；The output end of high speed amplifier chip AD8009 is connected to the grid of metal-oxide-semiconductor, the drain electrode of metal-oxide-semiconductor and resistance
The one end R4 is connected, and the resistance R4 other end is connected with+12V DC power supply, and storage capacitor C1 and C2 parallel connection, one end is grounded, the other end
It is connected with the drain electrode of metal-oxide-semiconductor, the source electrode of metal-oxide-semiconductor is connected on laser diode, and driving laser diode shines.
Compared with prior art, the present invention its remarkable advantage are as follows: 1) stagger the time present invention introduces multiple-pulse and be superimposed laser pulse
The laser pulse signal of various waveforms can be generated out in waveform generation technique, can accurately simulate laser firing pulses, target knot
The influence of structure, the irradiation factors such as orientation and propagation in atmosphere to laser radar echo；2) present invention passes through optical-fiber bundling combination laser
Device group pulse Time-delayed trigger, which realizes multiple-pulse, staggers the time and is superimposed laser pulse shape generation technique, has definite principle, fluted mould
Quasi- effect is good, the outstanding advantages such as small in size；3) invention introduces be based on Beer law form atmospheric attenuation model and echo function
The return laser beam database of the laser ranging equation of rate form can accurately adjust the defeated of laser pulse by program-controlled optical attenuator
Amplitude out, the influence to laser radar echo such as simulated atmosphere decaying, target reflectivity characteristics.
Detailed description of the invention
Fig. 1 is that a kind of multiple-pulse of the invention is staggered the time the laser radar echo simulator functional block diagram of superposition；
Fig. 2 is program-controlled laser drive circuit group schematic diagram of the invention.
Specific embodiment
The laser radar echo simulator of superposition as shown in Figure 1, a kind of multiple-pulse is staggered the time, comprising: program-controlled terminal 1, more arteries and veins
Rush activation time delayed device 3, program-controlled laser drive circuit group 4, band tail optical fiber semiconductor laser group 5, optical-fiber bundling device 6, program-controlled light
Attenuator 7 and collimating optical system 8, wherein the multiple-pulse activation time delayed device 3 is used to generate the TTL of the road n fixed frequency
Signal, n >=2, and be independently delayed to each pulse by the delay that program-controlled terminal 1 is arranged, the program-controlled Laser Driven electricity
Output driving is believed after the pulsewidth that road group 4 is used to be arranged according to program-controlled terminal 1 makees pulse-width adjustment and signal amplification to the road n TTL signal
Number, the band tail optical fiber semiconductor laser group 5 is used for for emitting the road n laser pulse, the optical-fiber bundling device 6 to n beam laser
Pulse carries out closing the superposition of Shu Shixian time warping, and the program-controlled optical attenuator 7 is used for the attenuation pair being arranged according to program-controlled terminal 1
Pulse after closing beam carries out amplitude control, and the collimating optical system 8 after collimating to wave beam for exporting.Present invention introduces
Program-controlled optical attenuator, can be arranged optical attenuation dB number by program-controlled, the laser pulse amplitude come out to optical-fiber bundling device
Further adjust.
In further embodiment, the program-controlled terminal 1 is connect with return laser beam database 2, for according to return laser beam
Delay, pulsewidth, attenuation is arranged in the data of database purchase.
In further embodiment, the return laser beam database 2 includes Beer law form atmospheric attenuation model and returns
The laser ranging equation of wave power form.
It is that 3 the present invention will be further described with n in further embodiment.
As shown in Fig. 2, the microcontroller U1 in program-controlled laser drive circuit group schematic diagram is stm32f103, pulse generation
Device chip U2, U3, U4 DS1040-75, high speed amplifier U5, U6, U7 AD8009, metal-oxide-semiconductor Q1, Q2, Q3 2N7000, directly
Galvanic electricity source is+5V ,+12V, and fixed resistance R1, R2, R5, R6, R9, R10 size is 1k Ω, and fixed resistance R4, R8, R12 size is
10 Ω, variable resistance R3, R7, R11 are that 0-3k Ω is adjustable, storage capacitor C1, C2, C3, C4, C5, C6, size 100pF.Three
Road TTL signal is separately input to impulse generator chip by three pins that multiple-pulse activation time delayed device arranges needle by one
The end IN of DS1040-75, DS1040-75 are the accurate pulse width chips of programmable disposable selection five, can root
The pulse signal of distinct pulse widths is exported according to the level height at the end P0, P1, P2, as follows:
Microcontroller U1 controls the level at the end P0, P1, P2 of DS1040-75, so that the pulsewidth of output pulse signal is controlled,
The pulse signal of DS1040-75 output is also not enough to drive metal-oxide-semiconductor, and the pulse signal of DS1040-75 output need to be put by high speed
Big device AD8009 amplification is independently adjusted three road pulse signals by adjusting the resistance value of adjustable resistance R3, R7, R11 input
Metal-oxide-semiconductor can be connected in enlargement ratio, amplified pulse signal, and driving laser emits laser.
Multiple-pulse activation time delayed device 3 is had using the pulse delay circuit of digital delay and simulation delay Mixed Design
The outstanding advantages such as system stabilization and delay precision height, can independently realize that the delays time to control of each road laser, delay precision are better than
200ps, repetition rate are up to 20kHz.Three independent signals and program-controlled Laser Driven electricity that multiple-pulse activation time delayed device 3 issues
Header 3 in road group 4 is connected.
What it is with the selection of tail optical fiber semiconductor laser group 5 is two pole of laser of the LPSC-1310-FC model of THORLABS company
Pipe, optical-fiber bundling device 6 are 3 × 1 optical-fiber bundling devices, and what program-controlled optical attenuator 7 was selected is JDSUHA9 optical attenuator, collimating optics
System 8 is an auto-collimation optical fibre rod lens.
As a kind of scheme of specific implementation, the multiple-pulse activation time delayed device 3 can independently realize each road laser
Delays time to control, signal delay time are adjusted according to return laser beam database 2.
As a kind of scheme of specific implementation, the laser arteries and veins issued with laser diode in tail optical fiber semiconductor laser group 5
Punching is respectively from three input terminals that tail optical fiber is input to optical-fiber bundling device 6.
Present system specific work steps is as follows:
Step 1: program-controlled terminal sets light decrement, pulse width, pulse delay and repetition rate.
Step 2: multiple-pulse activation time delayed device generates the TTL signal of three tunnel fixed frequencies, and by the setting of program-controlled terminal
Delay is delayed to each pulse, then by three road TTL signals, is sent in impulse generator chip U2, U3 and U4.
Step 3: three road TTL signals are transported in the DS1040-75 chip in laser drive circuit, DS1040-75 according to
The level of P2, P1 and P0 of U1 control just select the pulsewidth of the pulse signal generated；The pulse signal of generation is also not enough to
Metal-oxide-semiconductor conducting is driven, high speed amplifier AD8009 amplified signal need to be passed through, wherein the adjustable arteries and veins of variable resistance R3, R7 and R11
Rush the multiple of signal amplification；Metal-oxide-semiconductor is connected in enlarged pulse signal, and driving laser diode emits laser pulse.
Step 3: the laser pulse with tail optical fiber semiconductor laser is input in optical-fiber bundling device by tail optical fiber, in light
Three laser pulses close the superposition of Shu Shixian time warping in fine bundling device.
Step 4: the pulse input of optical-fiber bundling device output is into program-controlled optical attenuator, according to the light decay of program-controlled terminal setting
Then decrement forms impulse waveform, amplitude, delay and standard after collimated optical system collimation to decay to laser pulse
The straightforward laser radar echo signal met the requirements.
Claims (8)
- The laser radar echo simulator of superposition 1. a kind of multiple-pulse is staggered the time characterized by comprising program-controlled terminal (1), more arteries and veins Rush activation time delayed device (3), program-controlled laser drive circuit group (4), band tail optical fiber semiconductor laser group (5), optical-fiber bundling device (6), program-controlled optical attenuator (7) and collimating optical system (8), wherein the multiple-pulse activation time delayed device (3) is for generating The TTL signal of the road n fixed frequency, n >=2, and be independently delayed to each pulse by the delay that program-controlled terminal (1) is arranged, The program-controlled laser drive circuit group (4) is used to make pulse-width adjustment to the road n TTL signal according to the pulsewidth that program-controlled terminal (1) is arranged It is described for emitting the road n laser pulse with output drive signal, the band tail optical fiber semiconductor laser group (5) after signal amplification Optical-fiber bundling device (6) is used to carry out closing to n beam laser pulse the superposition of Shu Shixian time warping, and the program-controlled optical attenuator (7) is used Pulse after the attenuation pairing beam being arranged according to program-controlled terminal (1) carries out amplitude control, and the collimating optical system (8) is used It is exported after being collimated to wave beam.
- The laser radar echo simulator of superposition 2. multiple-pulse according to claim 1 is staggered the time, which is characterized in that the band Tail optical fiber semiconductor laser group (5) includes n band tail optical fiber semiconductor laser.
- The laser radar echo simulator of superposition 3. a kind of multiple-pulse according to claim 1 is staggered the time, which is characterized in that The program-controlled terminal (1) connect with return laser beam database (2), for being prolonged according to the setting of the data of return laser beam database purchase When, pulsewidth, attenuation.
- The laser radar echo simulator of superposition 4. a kind of multiple-pulse according to claim 3 is staggered the time, which is characterized in that institute State the laser ranging equation that return laser beam database (2) includes Beer law form atmospheric attenuation model and echo power form.
- The laser radar echo simulator of superposition 5. a kind of multiple-pulse according to claim 1 is staggered the time, which is characterized in that The multiple-pulse activation time delayed device (3) is using digital delay and the pulse delay circuit for simulating delay Mixed Design.
- The laser radar echo simulator of superposition 6. a kind of multiple-pulse according to claim 1 is staggered the time, which is characterized in that The collimating optical system (8) is auto-collimation optical fibre rod lens.
- The laser radar echo simulator of superposition 7. a kind of multiple-pulse according to claim 1 is staggered the time, which is characterized in that The value of n is 3.
- The laser radar echo simulator of superposition 8. a kind of multiple-pulse according to claim 7 is staggered the time, which is characterized in that The program-controlled laser drive circuit group (4) includes 3,3 groups of program-controlled laser drive circuits of row's needle header of 3pin, arranges needle The output port of header 3 is connect with one group of program-controlled laser drive circuit respectively, and every group of program-controlled laser drive circuit is identical, packet Impulse generator chip DS1040 is included, high speed amplifier chip AD8009, N channel metal-oxide-semiconductor, DC power supply+5V ,+12V are fixed Resistance R1, R2, R4, adjustable resistance R3, storage capacitor C1, C2 ,+5V and+12V respectively with impulse generator chip DS1040 and height The end VCC of speed amplifier AD8009 is connected, and powers to chip；The impulse generator chip DS1040 is according to the port P2, P1, P0 The pulsewidth size of incoming level height selection output pulse；The port of header 3 is connected with the port IN of DS1040, gives DS1040 input clock signal；One end output end OUT and resistance R1 of DS1040 is connected, the resistance R1 other end and high speed amplifier The in-phase end of chip AD8009 is connected；The one end resistance R2 ground connection, the reverse side of another termination high speed amplifier chip AD8009；It can Power transformation resistance one end R3 is connected with high speed amplifier chip AD8009 reverse side, and another termination high speed amplifier chip AD8009's is defeated Outlet；The output end of high speed amplifier chip AD8009 is connected to the grid of metal-oxide-semiconductor, and the drain electrode of metal-oxide-semiconductor is connected with the one end resistance R4, The resistance R4 other end is connected with+12V DC power supply, and storage capacitor C1 and C2 are in parallel, one end ground connection, the leakage of the other end and metal-oxide-semiconductor Extremely it is connected, the source electrode of metal-oxide-semiconductor is connected on laser diode, and driving laser diode shines.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058255A (en) * | 2019-05-10 | 2019-07-26 | 中国工程物理研究院电子工程研究所 | Orientation detection device and method |
| CN110196420A (en) * | 2019-06-25 | 2019-09-03 | 北京经纬恒润科技有限公司 | The echo simulation device and method of laser radar |
| CN110297230A (en) * | 2019-07-15 | 2019-10-01 | 北京理工大学 | Satellite-bone laser radar Echo Signal Simulator |
| CN110412609A (en) * | 2019-07-11 | 2019-11-05 | 郑州航空工业管理学院 | A kind of multi-pulse laser radar target detection method |
| CN110456329A (en) * | 2019-08-20 | 2019-11-15 | 哈尔滨工业大学 | High-frequency high-precision return laser beam analogue system |
| CN112014824A (en) * | 2019-05-31 | 2020-12-01 | 深圳市速腾聚创科技有限公司 | Multi-pulse anti-interference signal processing method and device |
| WO2021068212A1 (en) * | 2019-10-11 | 2021-04-15 | 深圳市大疆创新科技有限公司 | Light emitting device, distance measuring device and mobile platform |
| CN112904355A (en) * | 2021-01-22 | 2021-06-04 | 武汉徕得智能技术有限公司 | Method for non-interference superposition of multi-path zoomed laser pulse ranging echo signals |
| CN114859686A (en) * | 2022-04-29 | 2022-08-05 | 河北新华北集成电路有限公司 | Timing device and timing method based on laser radar |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590802A (en) * | 2012-01-20 | 2012-07-18 | 中国科学院上海技术物理研究所 | Tunable laser distance simulator and distance simulation method |
| CN202453495U (en) * | 2012-01-20 | 2012-09-26 | 中国科学院上海技术物理研究所 | Tunable laser range simulator |
| CN103901435A (en) * | 2014-03-11 | 2014-07-02 | 北京航空航天大学 | Full-fiber optical path full-waveform laser radar system |
| CN104849720A (en) * | 2015-05-29 | 2015-08-19 | 厦门大学 | Correlation sampling based laser multi-pulse ranging system |
| CN105591280A (en) * | 2014-11-17 | 2016-05-18 | 南京诺派激光技术有限公司 | Apparatus and method for generating ultrashort pulse laser |
| CN108375773A (en) * | 2018-02-10 | 2018-08-07 | 高若谦 | A kind of multi-channel laser radar three-dimensional point cloud measuring system and measurement method |
| CN108519590A (en) * | 2018-03-26 | 2018-09-11 | 北京理工大学 | Laser imaging radar echo signal simulating method and simulator |
-
2018
- 2018-09-14 CN CN201811076029.2A patent/CN109116333B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590802A (en) * | 2012-01-20 | 2012-07-18 | 中国科学院上海技术物理研究所 | Tunable laser distance simulator and distance simulation method |
| CN202453495U (en) * | 2012-01-20 | 2012-09-26 | 中国科学院上海技术物理研究所 | Tunable laser range simulator |
| CN103901435A (en) * | 2014-03-11 | 2014-07-02 | 北京航空航天大学 | Full-fiber optical path full-waveform laser radar system |
| CN105591280A (en) * | 2014-11-17 | 2016-05-18 | 南京诺派激光技术有限公司 | Apparatus and method for generating ultrashort pulse laser |
| CN104849720A (en) * | 2015-05-29 | 2015-08-19 | 厦门大学 | Correlation sampling based laser multi-pulse ranging system |
| CN108375773A (en) * | 2018-02-10 | 2018-08-07 | 高若谦 | A kind of multi-channel laser radar three-dimensional point cloud measuring system and measurement method |
| CN108519590A (en) * | 2018-03-26 | 2018-09-11 | 北京理工大学 | Laser imaging radar echo signal simulating method and simulator |
Non-Patent Citations (1)
| Title |
|---|
| 姜海娇等: "信号延时叠加提高激光雷达探测信噪比", 《光子学报》 * |
Cited By (14)
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|---|---|---|---|---|
| CN110058255A (en) * | 2019-05-10 | 2019-07-26 | 中国工程物理研究院电子工程研究所 | Orientation detection device and method |
| CN112014824B (en) * | 2019-05-31 | 2023-05-23 | 深圳市速腾聚创科技有限公司 | Multi-pulse anti-interference signal processing method and device |
| CN112014824A (en) * | 2019-05-31 | 2020-12-01 | 深圳市速腾聚创科技有限公司 | Multi-pulse anti-interference signal processing method and device |
| CN110196420A (en) * | 2019-06-25 | 2019-09-03 | 北京经纬恒润科技有限公司 | The echo simulation device and method of laser radar |
| CN110196420B (en) * | 2019-06-25 | 2021-07-23 | 北京经纬恒润科技股份有限公司 | Echo simulation device and method of laser radar |
| CN110412609A (en) * | 2019-07-11 | 2019-11-05 | 郑州航空工业管理学院 | A kind of multi-pulse laser radar target detection method |
| CN110297230B (en) * | 2019-07-15 | 2021-02-12 | 北京理工大学 | Satellite-borne laser radar echo signal simulator |
| CN110297230A (en) * | 2019-07-15 | 2019-10-01 | 北京理工大学 | Satellite-bone laser radar Echo Signal Simulator |
| CN110456329A (en) * | 2019-08-20 | 2019-11-15 | 哈尔滨工业大学 | High-frequency high-precision return laser beam analogue system |
| WO2021068212A1 (en) * | 2019-10-11 | 2021-04-15 | 深圳市大疆创新科技有限公司 | Light emitting device, distance measuring device and mobile platform |
| CN112955782A (en) * | 2019-10-11 | 2021-06-11 | 深圳市大疆创新科技有限公司 | Light emitting device, distance measuring device and mobile platform |
| CN112904355A (en) * | 2021-01-22 | 2021-06-04 | 武汉徕得智能技术有限公司 | Method for non-interference superposition of multi-path zoomed laser pulse ranging echo signals |
| CN114859686A (en) * | 2022-04-29 | 2022-08-05 | 河北新华北集成电路有限公司 | Timing device and timing method based on laser radar |
| CN114859686B (en) * | 2022-04-29 | 2024-02-06 | 河北新华北集成电路有限公司 | Timing device and timing method based on laser radar |
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